Abstract: The microcapsules and process of making describe a novel core shell microcapsule. The microcapsule incorporates a polysaccharide such as chitosan into the microcapsule wall forming the shell. The microcapsule shell is formed by dissolving chitosan into a material of structure wherein each R is independently selected from hydrogen, C1 to C8 alkyl, or a cyano group; and each y is independently an integer from 1 to 8, and reacting with a multifunctional (meth)acrylate.

Abstract: An improved process of making a benefit agent delivery particle and an improved microcapsule made by such process are disclosed. The process comprises the steps of providing a first composition of water phase 1, water phase 2, water phase 3 and an oil phase, where a water phase multifunctional (meth)acrylate monomer is selected to have a hydrophilicity index of least 25, or even at least 30 and the oil phase multifunctional (meth)acrylate monomer has a hydrophilicity index of 25 or less, or even 20 or less. The water phases comprise water, initiator, a water-soluble or dispersible amine(meth)acrylate or hydroxyl(meth)acrylate, a multifunctional (meth)acrylate and one water phase comprises water, carboxyalkyl(meth)acrylate and a base or quaternary ammonium acrylate. Water phases are combined to prereact the hydroxy- or amine(meth)acrylate and the multifunctional (meth)acrylate to form a multifunctional hydroxyl-amine(meth)acrylate pre-polymer.

Abstract: A method of forming dual melamine/acrylic walled microcapsules having improved physical properties and release control as well as the microcapsules formed by the process wherein the capsule wall is formed by the use of select (meth)acrylate monomers and/or oligomers and/or select self-condensing melamine resins.

Abstract: The invention describes a method of forming a stable aqueous polyurethane microgel dispersion comprising preparing an oil phase comprising a gel-forming polyol and an isocyanate in approximately stoichiometric proportion by blending the polyol and isocyanate for a time, less than the gel time of the polyol and isocyanate, thereby forming a homogeneous flowable liquid mixture; providing a water phase comprising a surfactant dispersed in water; combining the water phase with the oil phase flowable liquid mixture and subjecting the combined water and oil phases to high shear agitation to form an aqueous emulsion of micro-size droplets of the oil phase flowable mixture in water; and agitating the emulsion for a time sufficient for the micro-size droplets to polymerize, forming a stable aqueous suspension of solid polyurethane micro-size gel particles.

Abstract: A method of forming dual melamine/acrylic walled microcapsules having improved physical properties and release control as well as the microcapsules formed by the process wherein the capsule wall is formed by the use of select (meth)acrylate monomers and/or oligomers and/or select self-condensing melamine resins.

Abstract: Microcapsules encapsulating acidic materials particularly liquid or solid organic acids, either neat or dispersed in an oil phase, are described. The microcapsules comprise condensation products of alkylated methylol melamine resins in the presence of an acrylic acid-alkyl acrylate co-polymer. An aqueous emulsion is formed with a dispersed organic acid. pH control under acidic conditions along with additions of sulfate salt promotes controlled encapsulation over an extended time period with successive heating to effect condensation and cure.

Abstract: The present invention relates to compositions of benefit agent containing delivery particles and slurries comprising benefit agent containing delivery particles, compositions comprising said particles, and processes for making and using the aforementioned particles and compositions. Such slurries and benefit agent containing delivery particles are stable and when employed in compositions, for example, cleaning or fabric care compositions, the particles in such slurries increase the efficiency of benefit agent delivery, thereby allowing reduced amounts of benefit agents to be employed. In addition to allowing the amount of benefit agent to be reduced, such particles allow a broad range of benefit agents to be employed. The compositions can comprise particles, cakes, powders, particulates, aggregates, aggregate clusters and slurries comprising the benefit agent containing delivery particles.

Abstract: The invention discloses a microencapsulated phase change material having a specific Thermal Efficiency Index (TEI).

Abstract: The invention discloses a microencapsulated phase change material having a specific Thermal Efficiency Index (TEI). TEI=?(R?T)*?(R?H)*?(RMP)*?(RTGA@180)*?(RFW) The problem of achieving effective and efficient microencapsulated phase change material can be solved to yield a commercially useful material having the described combination of physical and chemical characteristics based on the parameters described in the specification.

Abstract: A feedstock composition and method of making a feedstock composition useful for manufacture of products providing multiple blooms of fragrance, the multiple blooms being provided for by different populations of microcapsules.

Abstract: A paint composition, which comprises a stanchion-encapsulated pigment such as titanium dioxide, can provide enhanced paint quality with reduced cost.

Abstract: The invention teaches a method of efficiently dewatering a microcapsule slurry to form a water re-suspendable filter cake of microcapsules. The process comprises providing an aqueous slurry of microcapsules dispersed in an aqueous solution; adding an agglomeration agent and dispersing the agglomeration agent into the aqueous slurry; adjusting the pH to a pH level sufficient to agglomerate the dispersed microcapsules; and filtering the aqueous slurry of microcapsules by gravity, vacuum or pressure filtration to thereby form a filter cake of dewatered microcapsules. The agglomeration agent is sodium polyphosphate, sodium tetrapolyphosphate, sodium hexametaphosphate, and/or sodium tripolyphosphate; or with anionic microcapsules or coatings even alkaline earth metal salts such as magnesium chloride, calcium chloride or barium chloride, or even aluminum salt such as aluminum chloride.

Abstract: The invention teaches a method of efficiently dewatering a microcapsule slurry to form a water re-suspendable filter cake of microcapsules. The process comprises providing an aqueous slurry of microcapsules dispersed in an aqueous solution; adding an agglomeration agent and dispersing the agglomeration agent into the aqueous slurry; adjusting the pH to a pH level sufficient to agglomerate the dispersed microcapsules; and filtering the aqueous slurry of microcapsules by gravity, vacuum or pressure filtration to thereby form a filter cake of dewatered microcapsules. The agglomeration agent is sodium polyphosphate, sodium tetrapolyphosphate, sodium hexametaphosphate, and/or sodium tripolyphosphate; or with anionic microcapsules or coatings even alkaline earth metal salts such as magnesium chloride, calcium chloride or barium chloride, or even aluminum salt such as aluminum chloride.

Abstract: An improved process of making a benefit agent delivery particle and an improved microcapsule made by such process are disclosed. The process comprises the steps of providing a first composition of water phase 1, water phase 2 and water phase 3. Water phase 1 comprises water and an initiator; water phase 2 comprises water, a water-soluble or dispersible amine(meth)acrylate or hydroxyl(meth)acrylate and a multifunctional (meth)acrylate. Water phase 3 comprises water, and carboxyalkyl(meth)acrylate and a base or quarternary ammonium acrylate. The first two water phases are combined to prereact the hydroxy- or amine(meth)acrylate and the multifunctional (meth)acrylate to form a multifunctional hydroxyl-amine(meth)acrylate pre-polymer.

Abstract: An activator means for use in activating or re-activating adhesive and sealant compositions that have been pre-applied to a bonding surface prior to mating said bonding surface said means having a plurality of features for directly acting upon the pre-applied composition.

Abstract: Disclosed are encapsulating methods and encapsulated products. A payload material may be encapsulated within a wall material. The carrier material and payload material form a combination that is at least substantially solid at room temperature but that is sufficiently fluid at milling temperature to permit milling and subsequent encapsulation. The payload material may be, for instance, a bitter tasting material. In some embodiments, the microcapsules will serve a taste masking function. In other embodiments, the microcapsules may be used where a slow release of the payload material is desired.

Abstract: A process of forming microcapsules is described. The microcapsule population is formed by providing an anionic or cationic, solid hydrophilic core material; providing an oil continuous phase, the oil continuous phase comprising one or more esters with chain length up to about 18 carbons. Emulsification is achieved by subjecting the mixture to high shear agitation and heating the mixture for a time sufficient to enable acid or amine acrylate or methacrylate and multifunctional acrylate or methacrylate to form a prepolymer which migrates to the anionic or cationic solid hydrophilic material, thereby forming prepolymers adhered to the hydrophilic core materials. Temperature is held or heating continued for a time sufficient to enable the prepolymer to flow onto and coalesce into a continuous film surface coating on the hydrophilic core material. Heating is carried out or light exposure or both for a time and temperature sufficient to cross link the prepolymers.